The New Jew
An Almanac & Field Guide for the Newly Practicing
14 Tishrei 5787
Friday, 25 September 2026
On the Horizon
  • 1daysSukkotסוכות
  • 71daysChanukahחנוכה
  • 179daysPurimפורים
The Mourner's Kaddish
Prayers
Essential Prayer · I

The Mourner's Kaddish

The mourner's prayer, in Aramaic, said with a minyan. It magnifies God rather than death.


Who is a Jew?
Foundations of Belief

Who is a Jew?

Jewish identity has both a Halachic definition and a wider self-understanding. The two do not always coincide.


The Halachic rule of matrilineal descent is sourced in Devarim 7:3–4 and elaborated in Talmud Kiddushin 68b, where the Sages derive from the verse that a child’s status follows the mother. The Mishneh Torah (Hilchot Issurei Biah 15:3) and the Shulchan Aruch (Even Ha’Ezer 4:19) codify this as binding.

Conversion (giyur) is the second route. A valid Orthodox conversion requires acceptance of the mitzvot (kabbalat ol mitzvot), circumcision (for men), and immersion in a mikveh (ritual bath), all under the supervision of a beit din (rabbinical court) of three observant Jews. Conservative conversions are conducted on similar lines with some halachic variation; Reform conversions typically omit the requirement of immersion and circumcision in some communities.

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The Sections

Ten ways into a practice.

These ten sections have been designed first as a structured guide for learning, and second as an almanac for free exploration.

Guide mode · work through the sections in order. Begin with Getting Started.